Stop-cock handle.



W. V. TURNBR.

STOP 000K HANDLB.

APPLIOATION IILED MAR. 21, 1907.

Patented Mar,9,1915.

-WWWISES IIMVEMTOW render the same more compact in form, durable m service, and rehable 1n operat1on.

WALTER V. TURNER, OF EDGEWOOD, PENNSYLVNIA, ASSIGNOB. TO THE WESTNG- HOUSE AIR BRKE COMPANY, 015 JEENNSYLVNIA.

PIITSBURGH, PENNSYLVNIA, A CORPORATION STOP-000K HANDLE.

Specificaton of Letters Patent.

Patented Mar. 9, 1915.

Application fi1ed March 21, 1907. Serial No. 363,711.

.[0 all whom it may concern:

Be it known that I, WALTER V. TURNER, a citizen of the United States, residing at Edgewood, in the county of Allegheny and -State of Pennsylvania, have invented new and useful Improvements in Stop- Cock Handles, of which the following is a specification.

This invention relates to self locking handles for stop cocks, or valves, and 15 particularly designed for use in connect1on With stop cocks, or angle cocks, of the tram pipe in air brake systems, but is also appl cable it any stop cock, or valve, Where it 1s desircd to lock the saine against accidental movement from one position to another.

'lhis invention is in the nature of an im' provement on the device illustrated and covered in prior Re-issue Patent No. 12,574, of Dec. 11, 1906, and has for its principal ob jects to provide an improved self locking device of this character, which Will operate to look the handle in either of its two positions, open or closed, and to simplify and strengthen the construction and .thereby In the accompianying drawing; Figure 1 is a side view of an angle cockwith my improved handle device applied thereto,, the upper part of the cock casing and 3. portion of the handle mechanism being shown in vertical section; Fig. 2 a .plan view of the same; Fig. 3 a side view showing the handle mechanism locked in the losed position of the cock; Fig. 4 a side view showing the handle in the open position of the cock; Fig. 5 a plan view of the handle memberg and Fig. 6 a plan view of the bracket member of the device.

As shown in the drawing, the angle cock casing 7 is of the ordinary construction, and the plug cock or key is provided with the usual square upper end portion for receiving the handle.

According to my improvement, the bracket piece 10, which has 3. square opening for fitting over the upper end of the plug cock, is provided with a laterally extending lug or wing 11, which may also project downward to engage the usual stop lugs 8 and 9 of the cock casing for defining the open and closed ositions, respectively,

of the cock. The brac et member also has a lug 13, to which the handle may be pivoted,

and a fiange 12, preferably on the opposite side and over the wing 11, for limiting the upward movement of the handle upon its pivot.

The head portion 14, of the handle member 15, completely s'urrounds the bracket piece 10, and is provided with lugs 17 for the slot 16is also formed through the handle member for the wing 11 of the bracket. By

means of this construction, in Which the head portion of the handle member is in the form of a continuous ring extending en tirely around the bracket piece, a compact, strong, and durable mechanism is produced which prevents any tendency t0 spread or twist at the pivoted connection. And as the Wing 11 extends through the slot 16 of the handle member when the same is raised to its upper position, as indicated in dotted limes in Fig. 1, the handle member bears positively against said wing 'as the handle is turned from one position to the other.

VVhen the handle mechanism is in the normal open position, as indicated in Figs. 1, 2 and 1, the downwardly projecting portion of the wing 11 bears against the stop lug 8 of the cock casing and the lug 19 of the handle drops in front of the stop lug 9 of the 'casing, thereby preventing any movement of the handle and the plug cock toward the closed position unless the p1voted handle is'raised, as indicated in dotted lines in Fig. 4:, so that the lug 19 can pass the stop 9. In order to close the cock, the handle is raised to this position and then turned until the wing 11 strikes the closed stop 9, as shown in Fig. 3. The handle then falls by gravity toits locking position and the lug 18 engages the stop 8, so as to prevent any accidental movement of the handle, or cock, from its closed position.

From the foregoing description, it Will now be seen that I have prov1ded a simple and compact construction of self locking handle mechanism which will be strong and durable in rough service, and operate to efiectually look the cock in either its open or its closed position against any accidental movement. According to my invention, it Will also be apparent that the locking means is operated by the movement of the handle upon its pivot on the bracket member, said Having now described my invention, What tors Patent, is:

bracketmember secured to the'cock-key and having a projecting Wii1g portion, a handle .niemben pivoted,to and -surrounding said 'braket and havi n2;' a slot or' opening for. 5rece1Ving sa1d Wmg: 1n the raised position ofthe handle, and means carried by said flldlj for engaging said stop and locking ock against accidental movement.

cock or secnrd to the cock-k2), a handle membet pivoted to said bracket and having aslot or. opening, said bracket baing provided:

with a wing portion adapted to enter into stop cock device, cpmprising a'plug valve,a casmg hav1ng stops to limit' the movement of the cock, a bracket member said slot or opening and a fiange for engaging said handle when in its mised position, and means carried by said handie for engaging one ofsaid stops: and locking the cock agaihst accidental movement.

3. A stop cock device, coinprising a plug cock or valve, a casing theref0r having fixed stops t0 limit the movement of the cock and define its open and closed positions, a bracket membr secured to the plug cock, a handle member pivoted on said bracket, and looking means operated by the movement of the handle upon its pivot for engaging said stops in the open and in the closed positions to prevent acoidental moveme'nt of the cock.

4. A stop cock device, comprising a plug cock or valve, a casing having stops to limit the movement ofthe cock, a bracket mmber secured to the piug cock, and a handle member .pivoted to said bracket, and having and in the closed positions to look the cock against accidental movement.

In te'stimony vv my hand. V WALTER V. TURNER.

Witnessesz R. F. EMERY,

hersofI have hreuhto set dv 4 3?: m'eans for engaging said stops in the'open 

